I think @Harvey1903 is in Gippsland, she may be able to give you some tips on local services Suzi.
Sounds like you've got a great frame of mind to tackle this challenge, and a wonderful supportive partner. If you're anything like me you'll find this experience will deepen your understanding of yourself. This can be very challenging but very enriching.
I watched my mother have breast cancer in 1986. The treatment was brutal then, but boy, it's come a long way. Chemo is in no parts fun, but for most people, it's not the horror show it once was. It requires patience, self-care, the knowledge that this too shall pass, and determination. Keep exercising and your side effects won't be as bad.
Every now and then we have someone who poses the question here about possibly declining chemotherapy as a treatment. As the other folk have said, it's a good question to ask. Speaking very personally, I made my decisions based very much on the desire that if my cancer came back to kill me, I would never have to look back and say "what if". My sister died from this two years ago, I know what that looks like very intimately.
Your oncologist will be able to show you an online tool into which you put your details and then, adding each type of treatment, the percentage increase in your being alive in five and ten years. These are of course statistical averages, and the ten year figure is all causes, and it's based on reasonably old data now, but it is a handy indicator.
It is also fair to put the hard word on your oncologist what the possible permanent or long term side effects are. A lot of us have found that they hesitate to tell us at the time when the decision is being made. Possibly because it's information overload, possibly because they have the firm belief that what they are advising is the best course of action. The bottom line being that as unpleasant as it is, currently chemo is the best weapon in the arsenal against cancer.
Listen to your medical team, listen to your gut and make the decision you can live with the best. K xox